Home / 203,315.83-280,577.41-112,673.25

Finding the Fourth Proportional to 203,315.83, 280,577.41 and 112,673.25

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Solution

The fourth proportional to 203,315.83, 280,577.41 and 112,673.25 is: 155,489.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,315.83 : 280,577.41 = 112,673.25 : x
  2. Step 2: Convert to fraction form
    203,315.83/280,577.41 = 112,673.25/x
  3. Step 3: Cross multiply
    203,315.83x = 280,577.41 × 112,673.25
  4. Step 4: Simplify right side
    203,315.83x = 31,613,568,379.60
  5. Step 5: Solve for x
    x = 31,613,568,379.60/203,315.83
  6. Step 6: Final answer
    x = 155,489.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.